Also, you can try disabling the 3D feature on the X application. There are some X applications that support both OpenGL and non-OpenGL based 3D mode. However, this option is application dependent and your application may not have this option. Also, using non-OpenGL mode may slow down the application performance. For more information, refer to the X application manual.

Note: For example, I-DEAS users can use "-dX3D" parameter when launching the application to disable OpenGL use. Application will still show 3D images.